import java.util.Scanner;

public class IF05 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入票号");
        int number = sc.nextInt();
        if (number>=0&&number<=100) {
            if (number % 2 == 0) {
                System.out.println("坐于右侧");
            } else {
                System.out.println("坐于左侧");
            }
        }
    }
}
